I concur with Biffo that you would be unlikely to confuse "No." with the phrase "No" when you consider it. But I do from time to time practical experience a split-second hesitation when reading a sentence with "No.", significantly if there's a Area in between it and the next number: https://no-scrub-cover85285.snack-blog.com/36518766/the-greatest-guide-to-no-scrubs-tlc